Preheat the oven to 400 degrees F.

In a large mixing bowl combine the flour, baking powder, salt and sugar and stir to combine.

Using a box grater, grate the butter into the dry mixture.

Place the entire bowl into the freezer for a few minutes just to keep the butter cold and chill the dry ingredients.

After about 10 minutes, remove the bowl from the freezer and add in the heavy cream, orange zest and chocolate. Carefully stir the mixture until everything comes together.

Turn the dough out onto a floured cutting board and knead a few times to bring everything together. Form the dough into a 1-inch thick rectangle. Cut the rectangle into squares and then each square into 2 triangles. Place the scones on a prepared baking sheet and bake in a 400 degree oven for 16-20 minutes, or until the top just barely turned golden brown.

Drizzle the tops with the reserved melted dark chocolate.

Serve immediately with butter or jam.